<div class="center">

	<div class="row-fluid">
	 <div class="span12">.span12</div>
	</div>

	<div class="row-fluid">
	 <div class="span1">.span1</div>
	 <div class="span11">.span11</div>
	</div>

	<div class="row-fluid">
	 <div class="span2">.span2</div>
	 <div class="span10">.span10</div>
	</div>

	<div class="row-fluid">
	 <div class="span3">.span3</div>
	 <div class="span9">.span9</div>
	</div>

	<div class="row-fluid">
	 <div class="span4">.span4</div>
	 <div class="span8">.span8</div>
	</div>

	<div class="row-fluid">
	 <div class="span5">.span5</div>
	 <div class="span7">.span7</div>
	</div>

	<div class="row-fluid">
	 <div class="span6">.span6</div>
	 <div class="span6">.span6</div>
	</div>

	<div class="row-fluid">
	 <div class="span7">.span7</div>
	 <div class="span5">.span5</div>
	</div>

	<div class="row-fluid">
	 <div class="span8">.span8</div>
	 <div class="span4">.span4</div>
	</div>

	<div class="row-fluid">
	 <div class="span9">.span9</div>
	 <div class="span3">.span3</div>
	</div>

	<div class="row-fluid">
	 <div class="span10">.span10</div>
	 <div class="span2">.span2</div>
	</div>

	<div class="row-fluid">
	 <div class="span11">.span11</div>
	 <div class="span1">.span1</div>
	</div>

	<div class="row-fluid">
	 <div class="span12">.span12</div>
	</div>

</div>